--- title: "J13502 — GS-34 CrMo 4, 22 equivalent designations" description: "J13502 in UNS: material number 1.7230, also listed as GS-34 CrMo 4. It is a material in the category Others. Designations recorded for this grade: 22." canonical: https://steelequivalents.com/materials/uns/j13502 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/uns/j13502.md cs: https://steelequivalents.com/cs/materiály/uns/j13502.md de: https://steelequivalents.com/de/werkstoffe/uns/j13502.md es: https://steelequivalents.com/es/materiales/uns/j13502.md fr: https://steelequivalents.com/fr/matériaux/uns/j13502.md hu: https://steelequivalents.com/hu/anyagok/uns/j13502.md it: https://steelequivalents.com/it/materiali/uns/j13502.md nl: https://steelequivalents.com/nl/materialen/uns/j13502.md pl: https://steelequivalents.com/pl/materiały/uns/j13502.md pt: https://steelequivalents.com/pt/materiais/uns/j13502.md ru: https://steelequivalents.com/ru/материалы/uns/j13502.md tr: https://steelequivalents.com/tr/malzemeler/uns/j13502.md zh: https://steelequivalents.com/zh/材料/uns/j13502.md ja: https://steelequivalents.com/ja/材料/uns/j13502.md ar: https://steelequivalents.com/ar/المواد/uns/j13502.md ko: https://steelequivalents.com/ko/재료/uns/j13502.md pt-br: https://steelequivalents.com/pt-br/materiais/uns/j13502.md hi: https://steelequivalents.com/hi/सामग्री/uns/j13502.md content_hash: sha256:eaa14d46846aa87cb0c78f7e8ea15d0d2e42285a72c69c3ea16ebaef8b925f90 generated: 2026-09-22 --- > **Machine-readable Markdown rendering.** This is a Markdown representation of a web page, > served for AI agents and crawlers as a token-efficient alternative to the full HTML. > Full interactive HTML version: https://steelequivalents.com/materials/uns/j13502 > Canonical URL: https://steelequivalents.com/materials/uns/j13502 > Available languages: en, cs, de, es, fr, hu, it, nl, pl, pt, ru, tr, zh, ja, ar, ko, pt-br, hi > Change detection: `content_hash` is the SHA-256 of this document's Markdown body — everything > below this block, whitespace-trimmed, excluding the front-matter. Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. UNS · United States · 22 designations # J13502 J13502 is a designation in UNS for the material held under material number 1.7230, also listed as GS-34 CrMo 4. It is a material in the category Others. We list 22 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, SAE AMS, JIS, GB and GOST. - [*Material no.* **1.7230**](/materials/material-no/1.7230 "Material no.: 1.7230") - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **22** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=a094e8f2-350c-43f8-8bb0-10b472f43f8e&designation=74ae42e5-1669-49eb-93fa-8d792d650c0c "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uns/j13502.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN G34CrMo4 This grade’s own name](/materials/din-en/g34crmo4 "DIN / EN G34CrMo4") - [UNS J13045 This grade’s own name](/materials/uns/j13045 "UNS J13045") ## About Others These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 22 designations · 9 standards · nothing hidden This grade’s own name recorded in our sources as this grade’s own designation under that standard. Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering. Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once. DIN / EN Europe · 4 - [1.7220 Indicative](/materials/material-no/1.7220 "DIN / EN 1.7220") - [G34CrMo4 This grade’s own name](/materials/din-en/g34crmo4 "DIN / EN G34CrMo4") - [GS-34 CrMo 4 This grade’s own name Withdrawn](/materials/din-en/gs-34-crmo-4 "DIN / EN GS-34 CrMo 4") - [GS-42CrMo4 Indicative](/materials/din-en/gs-42crmo4 "DIN / EN GS-42CrMo4") UNS United States · 3 - [J13045 This grade’s own name](/materials/uns/j13045 "UNS J13045") - [J13048 This grade’s own name](/materials/uns/j13048 "UNS J13048") - **J13502 This grade’s own name** AISI / SAE United States · 1 - [4130 Indicative](/materials/aisi-sae/4130 "AISI / SAE 4130") BS United Kingdom · 1 - [1717COS110 Indicative](/materials/bs/1717cos110 "BS 1717COS110") AFNOR France · 1 - [30CD4 Indicative](/materials/afnor/30cd4 "AFNOR 30CD4") SAE AMS United States / Aerospace · 7 - [6346 Indicative](/materials/ams/6346 "SAE AMS 6346") - [6350 Indicative](/materials/ams/6350 "SAE AMS 6350") - [6360 Indicative](/materials/ams/6360 "SAE AMS 6360") - [6361 Indicative](/materials/ams/6361 "SAE AMS 6361") - [6370 Indicative](/materials/ams/6370 "SAE AMS 6370") - [6371 Indicative](/materials/ams/6371 "SAE AMS 6371") - [6374 Indicative](/materials/ams/6374 "SAE AMS 6374") JIS Japan · 2 - [SCM420 Indicative](/materials/ks/scm420 "JIS SCM420") - [SCM430 Indicative](/materials/ks/scm430 "JIS SCM430") GB China · 2 - [30CrMo Indicative](/materials/gb/30crmo "GB 30CrMo") - [ZG42CrMo Indicative](/materials/gb/zg42crmo "GB ZG42CrMo") GOST Russia / CIS · 1 - [30XM Indicative](/materials/gost/30xm "GOST 30XM") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 7 elements on file · weight % What this alloy is Fe Cr Mn Si Iron — the balance, never listed by a standard — 97.1 % Cr — 1 % Mn — 0.7 % Si — 0.6 % Traces & impurities · 0.6 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.3–0.37 | | Si | ≤ 0.6 | | Mn | 0.5–0.8 | | P | 0.025 | | S | 0.02 | | Cr | 0.8–1.2 | | Mo | 0.15–0.3 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum 0.01 % 0.1 % 1 % 10 % 100 % The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other. | Element | As published source text, verbatim | Min% by weight | Max% by weight | Bound | |---|---|---|---|---| | C | 0,30-0,37 | 0.300 | 0.370 | Range | | Si | ≤0,60 | — | 0.600 | Max | | P | 0,025 | 0.025 | 0.025 | Exact | | S | 0,02 | 0.020 | 0.020 | Exact | | Cr | 0,80-1,20 | 0.800 | 1.200 | Range | | Mn | 0,50-0,80 | 0.500 | 0.800 | Range | | Mo | 0,15-0,30 | 0.150 | 0.300 | Range | The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred. ## Predicted transformation temperatures Not enough recorded composition to predict a transformation temperature for this grade — missing: Ni. ## Physical & mechanical properties Density 7,85 g/cm³ Exact An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material. ## Heat treatment Supply condition - Tempering t≤150 Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied. Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMjY3NzQ_ "Source: www.caishuku.com") ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.7, a shared category, and a published range for Cr / Mn that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade. [1.7218 1.7221 Cr 0,80-1,20 · Mn 0,50-0,80 - ΔCr 0.00 - ΔMn 0.00 - 6 designations](/materials/material-no/1.7218 "1.7218")[G34CrMo4-4 1.7341 Cr 0,80-1,20 · Mn 0,50-0,80 - ΔCr 0.00 - ΔMn 0.00 - 2 designations](/materials/din-en/g34crmo4-4 "G34CrMo4-4")[G22CrMo5-4 1.7354 Cr 0,80-1,10 · Mn 0,50-0,80 - ΔCr 0.05 - ΔMn 0.00 - 2 designations](/materials/din-en/g22crmo5-4 "G22CrMo5-4")[23CrMoB4 1.7211 Cr 0,90-1,20 · Mn 0,50-0,80 - ΔCr 0.05 - ΔMn 0.00 - 1 designations](/materials/din-en/23crmob4 "23CrMoB4")[25CrMoPb4 1.7217 Cr 0,90-1,20 · Mn 0,50-0,80 - ΔCr 0.05 - ΔMn 0.00 - 1 designations](/materials/din-en/25crmopb4 "25CrMoPb4")[42CrMoPb4 1.7222 Cr 0,90-1,20 · Mn 0,50-0,80 - ΔCr 0.05 - ΔMn 0.00 - 1 designations](/materials/din-en/42crmopb4 "42CrMoPb4") ## Looking for this grade under another name? Search the catalogue by designation, material number or composition — every name on this page is itself a way in. [Search](/search "Steel grade search")[Inquiry](/inquiry?material=a094e8f2-350c-43f8-8bb0-10b472f43f8e&designation=74ae42e5-1669-49eb-93fa-8d792d650c0c "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uns/j13502.pdf "Datasheet as PDF")